Thor Kitchen HC-767 Operating instructions

Repair Manual
HC-767

1
Contents
1. Warnings and precautions for safety.................................................................................3
2. External Views...................................................................................................................4
2.1 External Size................................................................................................................4
2.2 Description of Parts ....................................................................................................5
2.3 Cold air circulation.......................................................................................................6
3. Specification ......................................................................................................................7
4. Operation and functions....................................................................................................9
4.1 Display.........................................................................................................................9
4-2 Freezer Control ................................
............... ..........................................................11
4-3 Auto defrost mode.....................................................................................................13
4-4 Forced Defrosting Mode............................................................................................16
4.5 Fan voltage of control mode......................................................................................17
4.6 Water pipe Heater Control .......................................................................................17
4.7 Buzzer of Alarm Control ............................................................................................17
4.8 Control of Interior Lights............................................................................................17
4.9 Error Display..............................................................................................................18
4.10 Summary of Function ..............................................................................................19
4-11 Super Cool of Freezer or Refrigerator ....................................................................20
5. Wiring Diagram................................................................................................................21
6. Component Locate View.................................................................................................22
6.1 Refrigerator Compartment.........................................................................................22
6.2 Freezer Compartment ...............................................................................................23
6.3 Automatic Ice Maker Compartment...........................................................................24
6.4 Machine Compartment..............................................................................................25
7. How to Check Each Parts ...............................................................................................25
7.1 Ice Maker Assembly..................................................................................................25
7.2 Dispenser Solenoid Valve .........................................................................................27
7-3 Main PCB ..................................................................................................................28
7.4 PCB Display Panel ....................................................................................................39
7.5 Reversal beam...........................................................................................................39

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7-6 Disassembling Condenser Fan................................................................................. 40
8. Trouble Diagnosis............................................................................................................41
8.1 Faulty Start (R/F compartment Lights Off, Front PCB Power OFF)..........................41
8.2 Freezer Compartment Failure...................................................................................42
8.3 Refrigerator failure.....................................................................................................48
8.4 Operation Noise of Refrigerator ................................................................................ 54
8.5 Door Failure...............................................................................................................58
9. Cooling Cycle Heavy Repair ...........................................................................................59
9.1 Summary of Heavy Repair ........................................................................................59
9.2 Precautions During Heavy Repair.............................................................................60
9.3 Practical Work for Heavy Repair...............................................................................61
9-4 Standard Regulations for Heavy Repair ...................................................................63
9.5 Brazing Reference Drawings.....................................................................................64
10. Ice Maker.......................................................................................................................65
10.1 Dispenser water flow...............................................................................................65

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1. Warnings and precautions for safety
Please observe the following safety precautions in order to use safely and correctly the
refrigerator and to prevent accident and danger during repair.
power cord from wall outlet and wait at least three minutes before replacing
Allow 5 minutes to pass before reconnecting thepower cord.
Please check if the power plug is pressed down by the refrigerator against the wall. If the
power plug was damaged, it may cause fire or electric shock.
If the wall outlet is over loaded, it may cause fire. Use separate circuit individual electrical
outlet for the refrigerator.
Please make sure the outlet is properly Grounded.
Use standard electrical components when replacing them.
Make sure the connector is secure. Remove dust and foreign materials from the
housing and connecting parts.
Do not damage the power cord.
Please check the evidence of moisture intrusion in the electrical components. Replace the
parts or mask it with insulation tapes if moisture intrusion was confirmed.
Do not touch the icemaker with hands or tools to confirm the operation of geared motor.
Do not let the customers repair, disassemble and reconstruct the refrigerator for
themselves. It may cause accident. electric shock, or fire.Do not store flammable materials.
Do not put flower vase, cup, cosmetics, medicine etc.,and containerwith full liquid on top
of the refrigerator.
Do not put glass bottles filled with water into the freezer room,otherwise may cause
freezer on cabinetand bottles get cracked.
If you want to discard the refrigerator, please discharge doorgasket at first and
then place towherechildren can not reach.
PCB parts.
Unplug the

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2. External Views
2.1 External Size
Measurements in mm(inches)

5
2.2 Location of Parts
No. Name
1 Door switch
2 Butter case
3 R-compartment glass shelf
4 Door bin
5 Fruit and vegetable cases
6 F-compartment drawer components
7 Small door shelf
8 Folded glass shelf
9 F-compartment upper drawer
10 Ice maker components
11 F-compartment lower drawer

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2.3 Cold air circulation

911x782.5x1775mm(with handle)
35.9”x28.7” x69.9”(inches)
35.9”x30.8” x69.9”(inches)
1.8(Outer diameter)x0.7
(Wall thickness)xL3000(Length)(mm)
0.071”(Outer diameter)x0.0276”
(Wall thickness)xL118”(Length)(inches)
1.8(Outer diameter)x0.7
(Wall thickness)xL3000(Length)(mm)
0.071”(Outer diameter)x0.0276”
(Wall thickness)xL118”(Length)(inches)
2:

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Item Specification
Model name
Heater
Sheath R AS 115VAC, 120W
Sheath F AS 115VAC, 250W
Reversal beam heating wire 115VAC, 11W
Heating wire of air duct in
refrigerator bottom drawer
12VDC, 0.5W
Water inlet pipe heating wire of
ice maker 12VDC, 2.5W
Electrical
parts
Power cord 125VAC,
15A(UL) + Label
Fuse temp (defrost)
250VAC, 10A, 77℃
Refrigerator-evaporator fan 12VDC
Freezer- evaporator fan 12VDC
Condenser-fan 12VDC 1150±150
Ice makermotor
12VDC, 5W
Refrigerator- dome lamp 26-LED
Refrigerator- left/right lamp 6-LED x 2
Freezer-lamp 9-LED
Door lamp switch (Refrigerator) 125V 1A
Door lamp switch (Freezer) 125V,5A/125V,6A
Chill compartment air throttle
12VDC, 1W
Electric switching valve
12VDC, 100mA
Water valve 115VDC, 20W

4.1 Display Panel
Input
Control object
Front PCB button
Temp. set of Refrigerator/Freezer
Eco Mode, Auto mode
Ice-make ON/OFF
Alarm, lock/unlock
LED
1. Display control
LED
Control mode
88 display (Set Temp.)
Initial mode
(Normal)
Freezer
Refrigerator
-18℃/0°F
5℃/41°F
Super Fridge, Super Freezer
Touch
Fridge Alarm, Freezer Alarm
Touch
Energy saving Mode, Auto mode
Touch
Ice-make on/off
Touch
Lock/Unlock
Touch
2. “Refrigerator Temp”Button
1）Temperature control of Fridge compartment.
2）Temperature can be set circularly
3）Each press change 1℃/1°F
Ice-maker ON/OFF
Energy saving
Temperature adjustment button
for refrigerator compartment
Lock/Unlock
Auto mode
Temperature adjustment button
for freezing compartment
4. Operation and functions
9